Self-powered emergency response gas-mask-system via multi-dielectric flutter with negligible inhalation resistance

TY - JOUR

T1 - Self-powered emergency response gas-mask-system via multi-dielectric flutter with negligible inhalation resistance

AU - Heo, Deokjae

AU - Song, Myunghwan

AU - Bae, Jaekyung

AU - Kim, Youna

AU - cha, Kyunghwan

AU - Jin, Youngho

AU - Hwang, Patrick T.J.

AU - Hong, Jinkee

AU - Kim, Min Kun

AU - Lee, Sangmin

N1 - Publisher Copyright: © 2024

PY - 2024/11/1

Y1 - 2024/11/1

N2 - In hazardous environments, gas-mask wearers encounter various emergencies, and responding to such emergencies is crucial for safety and survival. In sudden or long-term emergencies, a self-powered gas-mask system must be established for continuous power supply to emergency-related electronics or for reliable self-powered sensing. However, a comprehensive analysis and the demonstration of a gas-mask integration design that considers breathing resistance, electrical output, and practical applications remain challenging. In this study, a gas-mask-canister-embedded inhalation-driven multi-dielectric flutter triboelectric generator (MF-TEG) was proposed to realize a self-powered emergency response gas-mask system (S-ERG). The MF-TEG was mechanically and electrically analyzed and optimized for various design variables. The canister with the MF-TEG generated stable electrical output (62 V, 500 Hz) during every inhalation, and the inhalation resistance was 7 % lower than permissible level, although the canister was compact. In the charging mode, the S-ERG demonstrated personal environmental monitoring and wireless location-tracking. A self-powered chemical warfare agent (CWA) sensing mechanism was established and analyzed for various variables. The S-ERG in the sensing mode, equipped with a signal-processing unit, could be used as a real-time personal CWA alert system. This study contributes to improving the practicality of TEGs as a promising energy technology.

AB - In hazardous environments, gas-mask wearers encounter various emergencies, and responding to such emergencies is crucial for safety and survival. In sudden or long-term emergencies, a self-powered gas-mask system must be established for continuous power supply to emergency-related electronics or for reliable self-powered sensing. However, a comprehensive analysis and the demonstration of a gas-mask integration design that considers breathing resistance, electrical output, and practical applications remain challenging. In this study, a gas-mask-canister-embedded inhalation-driven multi-dielectric flutter triboelectric generator (MF-TEG) was proposed to realize a self-powered emergency response gas-mask system (S-ERG). The MF-TEG was mechanically and electrically analyzed and optimized for various design variables. The canister with the MF-TEG generated stable electrical output (62 V, 500 Hz) during every inhalation, and the inhalation resistance was 7 % lower than permissible level, although the canister was compact. In the charging mode, the S-ERG demonstrated personal environmental monitoring and wireless location-tracking. A self-powered chemical warfare agent (CWA) sensing mechanism was established and analyzed for various variables. The S-ERG in the sensing mode, equipped with a signal-processing unit, could be used as a real-time personal CWA alert system. This study contributes to improving the practicality of TEGs as a promising energy technology.

UR - https://www.scopus.com/pages/publications/85205439135

UR - https://www.scopus.com/pages/publications/85205439135#tab=citedBy

U2 - 10.1016/j.cej.2024.156349

DO - 10.1016/j.cej.2024.156349

M3 - Article

SN - 1385-8947

VL - 499

JO - Chemical engineering journal

JF - Chemical engineering journal

M1 - 156349

ER -